It's fine on my screen. But yes, my experience with dark mode is that it requires a finer tuning by the user, done right it's superior to light mode, but the threshold of success is tighter
You can check your gamma settings, but that's a bit of an ask if you have everything setup just right. Green line numbers are pretty indicative either way
I think the mix of font colours is also a problem on the diffs alongside the dark green, which makes it really hard to see what's going on. I've switched back to light mode for reviewing PRs
